352 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Consejo Superior de Investigaciones CientíficasES9 papers
- Universidad Nacional Autónoma de MéxicoMX4 papers
- Centro de AstrobiologíaES3 papers
- European Space Astronomy CentreES3 papers
- Roma Tre UniversityIT3 papers
- Astronomical Observatory of RomeIT2 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- European Space Research and Technology CentreNL2 papers
- Instituto de Astrofísica de CanariasES2 papers
- Instituto de Física de CantabriaES2 papers
- Max Planck Institute for AstronomyDE2 papers
- National Institute for AstrophysicsIT2 papers
22 papers
Generalized time-dependent SIS Hamiltonian models: Exact solutions and quantum deformations
Eduardo Fernandez-Saiz, Rutwig Campoamor-Stursberg, Francisco J. Herranz
The theory of Lie-Hamilton systems is used to construct generalized time-dependent SIS epidemic Hamiltonians with a variable infection rate from the 'book' Lie algebra. Although th…
Thermal Conductivity measurements of macroscopic frozen Salt Ice analogs of Jovian Icy moons in support of the planned JUICE mission
Cristóbal González Díaz, Sofia Aparicio Secanellas, Guillermo M. Muñoz Caro +9
The study of thermal properties of frozen salt solutions representative of ice layers in Jovian moons is crucial to support the JUpiter ICy moons Explorer (JUICE) (ESA) and Europa…
Naturally occurring van der Waals materials
Riccardo Frisenda, Yue Niu, Patricia Gant +2
The exfoliation of two naturally occurring van der Waals minerals, graphite and molybdenite, arouse an unprecedented level of interest by the scientific community and shaped a whol…
Accretion and photodesorption of CO ice as a function of the incident angle of deposition
C González Díaz, H Carrascosa de Lucas, S Aparicio +4
Non-thermal desorption of inter- and circum-stellar ice mantles on dust grains, in particular ultraviolet photon-induced desorption, has gained importance in recent years. These pr…
First-order invariants of differential 2-forms
Jaime Muñoz Masqué, Luis Miguel Pozo Coronado
Let be a smooth manifold of dimension , and let be the dense open subbundle in of -covectors of maximal rank. The algebra of $\operatorname…
Square-Zero Basis of Matrix Lie Algebras
R. Durán Díaz, V. Gayoso Martínez, L. Hernández Encinas +1
A method is obtained to compute the maximum number of functionally independent invariant functions under the action of a linear algebraic group as long as its Lie algebra admits a…
A group law on the projective plane with applications in Public Key Cryptography
R. Durán Díaz, V. Gayoso Martínez, L. Hernández Encinas +1
We present a new group law defined on a subset of the projective plane over an arbitrary field , which lends itself to applications in Public Key Crypto…
Free-Space Quantum Key Distribution
Alberto Carrasco-Casado, Verónica Fernández, Natalia Denisenko
Based on the firm laws of physics rather than unproven foundations of mathematical complexity, quantum cryptography provides a radically different solution for encryption and promi…
Dynamic Nonlinear Focal Shift in Amplitude Modulated Moderately Focused Acoustic Beams
Noé Jiménez, Francisco Camarena, Nuria González-Salido
The phenomenon of the displacement of the position of the pressure, intensity and acoustic radiation force maxima along the axis of focused acoustic beams under increasing driving…
Chromatic effects in beam wander correction for free-space quantum communications
Alberto Carrasco-Casado, Natalia Denisenko, Veronica Fernandez
Beam wander caused by atmospheric turbulence can significantly degrade the performance of horizontal free-space quantum communication links. Classical beam wander correction techni…
Breaking Points in Quartic Maps
M. Romera, G. Pastor, M. -F. Danca +3
Dynamical systems, whether continuous or discrete, are used by physicists in order to study non-linear phenomena. In the case of discrete dynamical systems, one of the most used is…
Characterization of the Least Periods of the Generalized Self-Shrinking Sequences
Amparo Fúster-Sabater
In 2004, Y. Hu and G. Xiao introduced the generalized self-shrinking generator, a simple bit-stream generator considered as a specialization of the shrinking generator as well as a…
Linear Cellular Automata as Discrete Models for Generating Cryptographic Sequences
Pino Caballero-Gil, Amparo Fúster-Sabater, Oscar Delgado-Mohatar
In this paper, we develop a new cellular automata-based linear model for several nonlinear pseudorandom number generators with practical applications in symmetric cryptography. Suc…
Spectral Energy Distribution of Hyper-Luminous Infrared Galaxies
A. Ruiz, G. Miniutti, F. Panessa +1
The relationship between star formation and super-massive black hole growth is central to our understanding of galaxy formation and evolution. Hyper-Luminous Infrared Galaxies (HLI…
A BLR origin for the iron K line in NGC7213
Stefano Bianchi, Fabio La Franca, Giorgio Matt +5
The X-ray spectrum of NGC7213 is known to present no evidence for Compton reflection, a unique result among bright Seyfert 1s. The observed neutral iron K line, therefore, canno…
XMM-Newton observations of 4 luminous radio-quiet AGN, and the soft X-ray excess problem
F. D'Ammando, S. Bianchi, E. Jimenez-Bailon +1
The nature and origin of the soft X-ray excess in radio quiet AGN is still an open issue. The interpretation in terms of thermal disc emission has been challanged by the discovery…
NGC3147: a "true" Seyfert 2 without the broad-line region
S. Bianchi, A. Corral, F. Panessa +5
We report on simultaneous optical and X-ray observations of the Seyfert galaxy, NGC3147. The XMM-Newton spectrum shows that the source is unabsorbed in the X-rays ($N_H<5\times10^{…
New constraints on the membership of the T dwarf S Ori 70 in the sigma Orionis cluster
M. R. Zapatero Osorio, V. J. S. Bejar, G. Bihain +10
(Abridged) The nature of S Ori 70, a faint mid-T type object found towards the direction of the young sigma Orionis cluster, is still under debate. We intend to disentangle whether…
XMM-Newton observation of the deep minimum state of PG 2112+059: A spectrum dominated by reflection from the accretion disk?
N. Schartel, P. M. Rodriguez-Pascual, M. Santos-Lleo +5
We analyse a 75ks XMM-Newton observation of PG 2112+059 performed in November 2005 and compare it with a 15ks XMM-Newton observation taken in May 2003. PG 2112+059 was found in a d…
A PDR-Code Comparison Study
M. Roellig, N. P. Abel, T. Bell +21
We present a comparison between independent computer codes, modeling the physics and chemistry of interstellar photon dominated regions (PDRs). Our goal was to understand the mutua…
Are isolated planetary-mass objects really isolated? A brown dwarf-exoplanet system candidate in the sigma Orionis cluster
J. A. Caballero, E. L. Martin, P. D. Dobbie +1
The recent detection by direct imaging of three giant planets at wide separation (50-250 AU) from their primaries has raised the question about the ``true isolation'' of planetary-…
Ly-alpha emission from GRB host galaxies
J. P. U. Fynbo, P. Moller, B. Thomsen +8
Ly-alpha emission is indicative of on-going star formation in a dust-poor environment. Ly-alpha imaging is therefore a probe of the star formation rate and of the dust-content of G…